IOWA CITY, Iowa – A body found in an Iowa City park has been identified as a missing University of Iowa professor accused of offering higher grades to female students in exchange for sexual favors.

Iowa City police said the body of Arthur Miller was identified Tuesday using dental records.

Miller was reported missing Aug. 20. His body was found by a hiker in Hickory Hill Park on Sunday.

Miller was arrested Aug. 8 on four counts of bribery related to accusations he offered better grades for sexual favors. He was on paid administrative leave.

The clothing found on the body and a blanket near it were similar in description to the items police said Miller was wearing and carrying with him. A rifle was found underneath the body, said Sgt. Mike Brotherton.

Police said jewelry worn by Miller was identified by his wife. Items owned by Miller were found in the pockets of clothing found on the body, including his car keys.

Police earlier said they suspected he killed himself, but a cause of death wasn't released.

His family members had said he was suicidal, and his disappearance caused an unsuccessful two-day search of the park.

On Monday, University of Iowa President Sally Mason announced a new campaign to raise awareness of sexual assault and harassment.

Mason announced the campaign in a mass e-mail to the university.

In the e-mail, Mason said sexual harassment and sexual assault have been a major concern on campus and that neither will be tolerated at the university.

"As a university, we are committed to the highest standards of intellectual pursuit, and our standards for respect for others must be equally high," Mason said. "To help communicate this message, we are launching a campaign to promote inclusion, social justice and human civility across our campus."